TW200725596A - Optical information detecting method and optical information detector - Google Patents

Optical information detecting method and optical information detector

Info

Publication number
TW200725596A
TW200725596A TW095125420A TW95125420A TW200725596A TW 200725596 A TW200725596 A TW 200725596A TW 095125420 A TW095125420 A TW 095125420A TW 95125420 A TW95125420 A TW 95125420A TW 200725596 A TW200725596 A TW 200725596A
Authority
TW
Taiwan
Prior art keywords
optical information
detection pixels
image
sampling
detecting method
Prior art date
Application number
TW095125420A
Other languages
Chinese (zh)
Other versions
TWI355655B (en
Inventor
Pil-Sang Yoon
Original Assignee
Daewoo Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daewoo Electronics Corp filed Critical Daewoo Electronics Corp
Publication of TW200725596A publication Critical patent/TW200725596A/en
Application granted granted Critical
Publication of TWI355655B publication Critical patent/TWI355655B/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Holo Graphy (AREA)
  • Image Input (AREA)
  • Optical Head (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

There is provided an optical information detecting method comprising: detecting an image of a source data page containing a frame mask by the use of an optical detection region within respective 1:N (where N is greater than 1) excessive detection pixels; monitoring a light intensity of the detected image and determining a matching state of the frame mask; determining an arrangement pattern of valid detection pixels of the detection pixels in accordance with the determined matching state of the frame mask and detecting sampling detection pixels; and sampling an image of the sampling detection pixels from the detected image and reproducing the image of the source data page. There is also an optical information detector used to put the optical information detecting method into practice. Accordingly, it is possible to detect optical information with high reliability without performing complex calculation by the use of a 1:N over-sampling method.
TW095125420A 2005-12-22 2006-07-12 Optical information detecting method and optical i TWI355655B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050127441A KR100676870B1 (en) 2005-12-22 2005-12-22 Optical information detection method and optical information detector

Publications (2)

Publication Number Publication Date
TW200725596A true TW200725596A (en) 2007-07-01
TWI355655B TWI355655B (en) 2012-01-01

Family

ID=37907429

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095125420A TWI355655B (en) 2005-12-22 2006-07-12 Optical information detecting method and optical i

Country Status (6)

Country Link
US (1) US7580173B2 (en)
EP (1) EP1801793A3 (en)
JP (1) JP4837468B2 (en)
KR (1) KR100676870B1 (en)
CN (1) CN100557688C (en)
TW (1) TWI355655B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100728818B1 (en) 2006-03-03 2007-06-19 주식회사 대우일렉트로닉스 Optical information detection method, optical information detector and data sampling method
KR101456297B1 (en) * 2007-12-27 2014-11-04 메이플 비젼 테크놀로지스 인크. methood for pattern detecting of over-sampling image, apparatus for optical information processing by using same and method for optical information processing by using same
CN102445269B (en) * 2010-10-15 2015-05-20 鸿富锦精密工业（深圳）有限公司 Illumination intensity detection system and method
TW201410076A (en) * 2012-08-27 2014-03-01 Hon Hai Prec Ind Co Ltd System and method for detecting status of lamp
CN111079732A (en) * 2019-12-13 2020-04-28 西安锐驰电器有限公司 Optical information detection method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511058A (en) * 1993-12-23 1996-04-23 Tamarack Storage Devices Distortion correction of a reconstructed holographic data image
CN1220019A (en) * 1996-05-10 1999-06-16 艾奥光学公司 Calibration method and apparatus for retrieving data from a two-dimensional data array
JP3737292B2 (en) * 1998-10-13 2006-01-18 パイオニア株式会社 Light modulator and optical information processing system
JP3707286B2 (en) 1999-03-16 2005-10-19 富士ゼロックス株式会社 Optical regeneration method and optical regeneration apparatus
JP4002156B2 (en) * 2001-08-28 2007-10-31 日本電信電話株式会社 IN-IMAGE PATTERN POSITION DETECTING METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM CONTAINING PROGRAM
KR100555914B1 (en) * 2003-11-15 2006-03-03 주식회사 대우일렉트로닉스 Apparatus and method for extracting data from holographic system
JP4300121B2 (en) * 2004-01-06 2009-07-22 パイオニア株式会社 Optical regenerator
JP4466950B2 (en) * 2004-02-16 2010-05-26 パイオニア株式会社 Hologram recording device
KR100578181B1 (en) * 2004-03-08 2006-05-11 주식회사 대우일렉트로닉스 Oversampling method of holographic digital data storage system
KR100578182B1 (en) * 2004-04-12 2006-05-11 주식회사 대우일렉트로닉스 Reproduction hologram data preprocessing apparatus and method in holographic system
KR100589590B1 (en) * 2004-05-10 2006-06-14 주식회사 대우일렉트로닉스 Data restoration device and method of holographic system
JP2006065272A (en) * 2004-07-28 2006-03-09 Sony Corp Hologram apparatus, spatial light modulator and imaging element positioning method, and hologram recording material
KR100601283B1 (en) * 2004-12-15 2006-07-19 주식회사 대우일렉트로닉스 Align Mark Detection Apparatus and Method for Oversampling in Hologram Regeneration System
KR100728818B1 (en) * 2006-03-03 2007-06-19 주식회사 대우일렉트로닉스 Optical information detection method, optical information detector and data sampling method

Also Published As

Publication number Publication date
KR100676870B1 (en) 2007-02-02
US20070172156A1 (en) 2007-07-26
US7580173B2 (en) 2009-08-25
JP2007171910A (en) 2007-07-05
TWI355655B (en) 2012-01-01
CN100557688C (en) 2009-11-04
CN1988013A (en) 2007-06-27
JP4837468B2 (en) 2011-12-14
EP1801793A2 (en) 2007-06-27
EP1801793A3 (en) 2009-12-02

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees